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| 1 <!DOCTYPE html> | |
| 2 <script> | |
| 3 window.onload = function() | |
| 4 { | |
| 5 if (!window.testRunner || !window.internals) | |
| 6 return; | |
| 7 | |
| 8 testRunner.dumpAsText(); | |
| 9 document.body.offsetTop; | |
| 10 internals.startTrackingRepaints(document); | |
| 11 | |
| 12 document.getElementById('a').style.top = '400px'; | |
| 13 document.getElementById('b').style.left = '400px'; | |
| 14 | |
| 15 document.body.offsetTop; | |
| 16 var layerTree = internals.layerTreeAsText(document, internals.LAYER_TREE_INC
LUDES_PAINT_INVALIDATIONS); | |
| 17 window.internals.stopTrackingRepaints(document); | |
| 18 document.getElementById('result').textContent = layerTree.indexOf('repaint')
== -1 ? 'SUCCESS' : 'FAIL'; | |
| 19 }; | |
| 20 </script> | |
| 21 | |
| 22 <style> | |
| 23 .fixed { | |
| 24 position: fixed; | |
| 25 top: 200px; | |
| 26 left: 200px; | |
| 27 width: 100px; | |
| 28 -webkit-backface-visibility: hidden; | |
| 29 } | |
| 30 </style> | |
| 31 | |
| 32 There should be no repaint when the divs are moved. | |
| 33 <div class="fixed" id="a">A</div> | |
| 34 <div class="fixed" id="b">B</div> | |
| 35 <pre id="result"></pre> | |
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